From 18ccbebb9a4484e4efb4db2c5c9405e853578e7d Mon Sep 17 00:00:00 2001
From: mtouellette <77415006+mtouellette@users.noreply.github.com>
Date: Wed, 16 Feb 2022 09:50:14 -0500
Subject: [PATCH] fix: ensure native mixed types remain valid

---
 src/Utility/Reflection/Reflection.php            |  2 +-
 tests/Unit/Utility/Reflection/ReflectionTest.php | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/Utility/Reflection/Reflection.php b/src/Utility/Reflection/Reflection.php
index acaa7a9..cf358e3 100644
--- a/src/Utility/Reflection/Reflection.php
+++ b/src/Utility/Reflection/Reflection.php
@@ -81,7 +81,7 @@ final class Reflection
         /** @var ReflectionNamedType $type */
         $name = $type->getName();
 
-        if ($name !== 'null' && $type->allowsNull()) {
+        if ($name !== 'null' && $type->allowsNull() && $name !== 'mixed') {
             return $name . '|null';
         }
 
diff --git a/tests/Unit/Utility/Reflection/ReflectionTest.php b/tests/Unit/Utility/Reflection/ReflectionTest.php
index f41df8f..4b11bad 100644
--- a/tests/Unit/Utility/Reflection/ReflectionTest.php
+++ b/tests/Unit/Utility/Reflection/ReflectionTest.php
@@ -105,6 +105,20 @@ final class ReflectionTest extends TestCase
         self::assertSame('int|float', Reflection::flattenType($type));
     }
 
+    /**
+     * @requires PHP >= 8
+     */
+    public function test_mixed_type_is_handled(): void
+    {
+        $object = new class () {
+            public mixed $someProperty;
+        };
+
+        /** @var ReflectionType $type */
+        $type = (new ReflectionProperty($object, 'someProperty'))->getType();
+        self::assertSame('mixed', Reflection::flattenType($type));
+    }
+
     /**
      * @requires PHP >= 8.1
      */